Following a long investigation, Police Detective-Lieutenant Anthony "Tony" Roberts becomes convinced that there is some powerful unknown-master-mind leader behind the gangs of crooks who are terrorizing the city, and it has something to do with paroled convicts. He sets up a scheme with his supervisor to have himself shamed by being demoted to a patrolman and then caught in the act of receiving bribe-money from a racketeer. He is convicted and sent to prison, and the manner in which his parole is arranged leads him, dangerously, to the secret-head of the gang.

Escaped convicts hold hostages in a ghost town targeted for a nuclear bomb test.

G-Man Jeff Crane poses as a crook to infiltrate the notorious Purple Gang, a band of hoodlums which preys upon other hoodlums. Orchestrating the jailbreak of the gang's leader, Crane joins him in a Dillinger-like flight across the country.

Eric Temple is a composer whose rival, both in romance and work, is Sir Geoffrey Pomfret , a nobleman with few scruples. The woman they both love is Margaret, the daughter of Lord Neville. To get rid of his competition, Pomfret tells Lord Neville that his wife, Lady Neville, is in love with Eric. Then, when Eric is attacked by thugs and lays unconscious in a hospital, he steals his opera too.

A man is murdered, apparently by one of a group of soldiers just out of the army. But which one? And why?

Circus owner Buck Rand kidnaps Boy to perform in his show. He forces a pilot to fly him, Boy and his animal trainer out of the jungle. Tarzan and Jane follow them to New York.

The dream is unusually vivid: Bank employee Vince Grayson finds himself murdering a man in a sinister octagonal-shaped room lined with mirrors while a mysterious woman breaks into a safe. It is so vivid that Vince suspects it may have really happened. To get the dream off his mind, he goes on a picnic with some relatives. When a thunderstorm forces his party into a nearby mansion, Vince discovers that the bizarre room does exist, and it means nothing but trouble.

Cleve Marshall, an assistant district attorney, falls for Thelma Jordon, a mysterious woman with a troubled past. When Thelma becomes a suspect in her aunt's murder, Cleve tries to clear her name.

Shopgirl Mary Turner, sentenced to prison for someone else's theft, is released and takes revenge upon those who wronged her in powerful but lawful ways.

Jim Gordon commands a unit of the famed Flying Tigers, the American Volunteer Group which fought the Japanese in China before America's entry into World War II. Gordon must send his outnumbered band of fighter pilots out against overwhelming odds while juggling the disparate personalities and problems of his fellow flyers.